by Sue Warne | Sep 28, 2015
EFU-61 VELEMCombined earth fault & earth line monitor (110V) ▼Product Details▼ Product Description EFU61 VELEM: Combined earth fault & earth line monitor Control voltage: 110V; 30-120Hz Trip current: 20mA – 300mA (over 2 ranges)* Time delay: Inst...